waller and 25-year-old william campbell, both of baltimore. they're being held without bond this morning at the county detention center. police say the men abducted several victims from bus stops in baltimore county and the city. the first two cases involved teen girls who were abducted from a bus stop in catensville, held at gunpoint and sexually assaulted. then just the other day police say the suspects abducted a man and a woman near the mta bus stop on liberty heights in the city. the man was able to get away quickly, the woman was robbed and then let go. similar cases prompted detectives in both the city and county to start working together and that's how they tracked down the suspects. baltimore city detectives were able to get a partial tag, officers from both jurisdictions began to work together, investigating these incidents. they were able to identify the owner of the vehicle used and connect one of the suspects to the owner. >>reporter: now, police believe that there may be more victims out there that have yet to come forward. if these cases sound familiar to you, please call